光谱学与光谱分析 |
|
|
|
|
|
Structural Characterization of Rare-Earth Stearate and It’s Thermal Stability Mechanism for PVC |
ZHENG Yu-ying, CAI Wei-long, FU Ming-lian, SUN Rui-qing |
College of Chemistry and Chemical Engineering, Fuzhou University, Fuzhou 350002, China |
|
|
Abstract Structural characterization of rare-earth stearate was conducted by FTIR and XRD. The results show that the bonds between the stearate and rare-earth metal ions in rare-earth stearate are main ionic character and have the stratified crystalline structure with the crystal layer formed from a plane layer of rare-earth ions combined with two layers of fully extended zigzag chains of stearic acid radicals arranged parallelly to each other on its both sides, and the rare-earth ions axes are inclined to the crystal layer planes in it. Congo red test showed that the stabilizing time increased when the stabilizers’ concentration increased. The order of stability of this four rare-earth stearates is Last>Ndst>Yst>Dyst. Furthermore, the thermal stability mechanism of rare earth stearate for PVC has been presumed by FTIR. The results indicate that Last and Ndst can bate the chain reaction and exchange the labile functional groups in the backbone chains for other more stable substituents derived from the stabilizer and change the framwork, while Yst and Dyst’s effect is not clear.
|
Received: 2003-07-26
Accepted: 2003-11-06
|
|
Corresponding Authors:
ZHENG Yu-ying
|
|
Cite this article: |
ZHENG Yu-ying,CAI Wei-long,FU Ming-lian, et al. Structural Characterization of Rare-Earth Stearate and It’s Thermal Stability Mechanism for PVC [J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2004, 24(12): 1533-1536.
|
|
|
|
URL: |
https://www.gpxygpfx.com/EN/Y2004/V24/I12/1533 |
[1] HU Lu-guang, HUANG Shao-jun(胡卢广, 黄绍钧). China Plastics(中国塑料), 2000, 14(10): 62. [2] Theodorou M, Jasse B. Journal of Polymer Science: Polymer Physics Edition, 1983, 21: 2263. [3] Tabb D L, Koenig J L. Macromolecules, 1975,(8): 929. [4] WANG Fu-hai(王福海). Manufacture Technics of Stearic Acid and Fatly Acid Ramification(硬脂酸及脂肪酸衍生物生产工艺). Beijing: Chinese Light Industry Press(北京:中国轻工业出版社), 1991. 12. [5] WU Jin-guang(吴瑾光). The Techniques and Application of Modern Fourier Transform Infrared Spectroscopy(近代傅里叶变换红外光谱技术及应用·下卷). Beijing: Literature Press of Science and Technology(北京:科学技术文献出版社), 1998. 120. [6] Mehrotra K N, Jaia J K. Tenside Surfactants Detergents, 1988, 25(1):47. [7] ZHOU Gong-du, DUAN Lian-yun(周公度,段连运编著). Foundation of Structure Chemistry(结构化学基础). Beijing: Peking University Press(北京:北京大学出版社), 2002. 430. [8] XUE Qi(薛 奇). Methods in Study of Macromolecule's Structure(高分子结构研究中的光谱方法). Beijing: Higher Education Press(北京:高等教育出版社), 1995. 40. [9] SHEN De-yan(沈德言). Application of Infrared Spectrum in Study of Macromolecule(红外光谱在高分子研究中的应用). Beijing: Science Press(北京:科学出版社), 1982. 290. [10] FAN Wen-xiu, CHEN Gang, WAN Shou-kang et al(范文秀,陈 刚,宛寿康等). Spectroscopy and Spectral Analysis(光谱学与光谱分析), 1999, 19(6): 772. [11] Yassin,Sabba. Macromol. Chem. Phys., 1991, C30(3, 4): 491. [12] Krmm S. J. Polym. Sci., 1969, C7: 3. [13] Martiner G,Millan J. Eur. Polym. J., 1983, 21(4): 387. |
[1] |
XU Qi-lei, GUO Lu-yu, DU Kang, SHAN Bao-ming, ZHANG Fang-kun*. A Hybrid Shrinkage Strategy Based on Variable Stable Weighted for Solution Concentration Measurement in Crystallization Via ATR-FTIR Spectroscopy[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2023, 43(05): 1413-1418. |
[2] |
KAN Yu-na1, LÜ Si-qi1, SHEN Zhe1, ZHANG Yi-meng1, WU Qin-xian1, PAN Ming-zhu1, 2*, ZHAI Sheng-cheng1, 2*. Study on Polyols Liquefaction Process of Chinese Sweet Gum (Liquidambar formosana) Fruit by FTIR Spectra With Principal Component Analysis[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2023, 43(04): 1212-1217. |
[3] |
YAN Li-dong1, ZHU Ya-ming1*, CHENG Jun-xia1, GAO Li-juan1, BAI Yong-hui2, ZHAO Xue-fei1*. Study on the Correlation Between Pyrolysis Characteristics and Molecular Structure of Lignite Thermal Extract[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2023, 43(03): 962-968. |
[4] |
LI Zong-xiang1, 2, ZHANG Ming-qian1*, YANG Zhi-bin1, DING Cong1, LIU Yu1, HUANG Ge1. Application of FTIR and XRD in Coal Structural Analysis of Fault
Tectonic[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2023, 43(02): 657-664. |
[5] |
CHENG Xiao-xiao1, 2, LIU Jian-guo1, XU Liang1*, XU Han-yang1, JIN Ling1, SHEN Xian-chun1, SUN Yong-feng1. Quantitative Analysis and Source of Trans-Boundary Gas Pollution in Industrial Park[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2022, 42(12): 3762-3769. |
[6] |
ZHANG Hao1, 2, HAN Wei-sheng1, CHENG Zheng-ming3, FAN Wei-wei1, LONG Hong-ming2, LIU Zi-min4, ZHANG Gui-wen5. Thermal Oxidative Aging Mechanism of Modified Steel Slag/Rubber Composites Based on SEM and FTIR[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2022, 42(12): 3906-3912. |
[7] |
CHEN Jing-yi1, ZHU Nan2, ZAN Jia-nan3, XIAO Zi-kang1, ZHENG Jing1, LIU Chang1, SHEN Rui1, WANG Fang1, 3*, LIU Yun-fei3, JIANG Ling3. IR Characterizations of Ribavirin, Chloroquine Diphosphate and
Abidol Hydrochloride[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2022, 42(07): 2047-2055. |
[8] |
MA Fang1, HUANG An-min2, ZHANG Qiu-hui1*. Discrimination of Four Black Heartwoods Using FTIR Spectroscopy and
Clustering Analysis[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2022, 42(06): 1915-1921. |
[9] |
ZHANG Dian-kai1, LI Yan-hong1*, ZI Chang-yu1, ZHANG Yuan-qin1, YANG Rong1, TIAN Guo-cai2, ZHAO Wen-bo1. Molecular Structure and Molecular Simulation of Eshan Lignite[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2022, 42(04): 1293-1298. |
[10] |
WANG Fang-fang1, ZHANG Xiao-dong1, 2*, PING Xiao-duo1, ZHANG Shuo1, LIU Xiao1, 2. Effect of Acidification Pretreatment on the Composition and Structure of Soluble Organic Matter in Coking Coal[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2022, 42(03): 896-903. |
[11] |
HU Chao-shuai1, XU Yun-liang1, CHU Hong-yu1, CHENG Jun-xia1, GAO Li-juan1, ZHU Ya-ming1, 2*, ZHAO Xue-fei1, 2*. FTIR Analysis of the Correlation Between the Pyrolysis Characteristics and Molecular Structure of Ultrasonic Extraction Derived From Mid-Temperature Pitch[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2022, 42(03): 889-895. |
[12] |
YANG Jiong1, 2, QIU Zhi-li1, 4*, SUN Bo3, GU Xian-zi5, ZHANG Yue-feng1, GAO Ming-kui3, BAI Dong-zhou1, CHEN Ming-jia1. Nondestructive Testing and Origin Traceability of Serpentine Jade From Dawenkou Culture Based on p-FTIR and p-XRF[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2022, 42(02): 446-453. |
[13] |
HE Xiong-fei1, 2, HUANG Wei3, TANG Gang3, ZHANG Hao3*. Mechanism Investigation of Cement-Based Permeable Crystalline Waterproof Material Based on Spectral Analysis[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2021, 41(12): 3909-3914. |
[14] |
ZHOU Jing1,2, ZHANG Qing-qing1,2, JIANG Jin-guo2, NIE Qian2, BAI Zhong-chen1, 2*. Study on the Rapid Identification of Flavonoids in Chestnut Rose (Rosa Roxburghii Tratt) by FTIR[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2021, 41(10): 3045-3050. |
[15] |
Samy M. El-Megharbel*,Moamen S. Refat. In First Time: Synthesis and Spectroscopic Interpretations of Manganese(Ⅱ), Nickel(Ⅱ) and Mercury(Ⅱ) Clidinium Bromide Drug Complexes[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2021, 41(10): 3316-3320. |
|
|
|
|